Encyclopedia

YULS

Lossless video codec

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Source updated December 17, 2025

YULS or YUVsoft's Lossless Video Codec, a lossless video codec developed by YUVsoft, was designed to produce highly compressed lossless video. YULS compares favorably, in terms of compression ratio, with other codecs.

01Releases

Version	Changes
1.0.3	compression ratio improved by 5%
1.0.2	YV12 and YUY2 are no longer converted to RGB24 2-4% speed increase Handling of incorrect state loading
1.0.1	2-3% speed increase persistent state error handling improved dialog windows reworked
1.0.0	Initial public release

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Sources and credits

This article is adapted from the Wikipedia article “YULS”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

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